June Vacation Chap 9.2 RATE (L4) Self-Paced Learning

1. Mathematics Textbook 1B
(a) Go through Chapter 9 (p9 to p11)
(b) Attempt Exercise 9.2 Q1 to Q10.
Enter your answers to Exercise 9.2 under Comments. Label your Answers with Question numbers.

2. ACELearning Portal: eLearning Portal
> Subject: Secondary 1 Express
> Additional Arithmetic
> Ratio, Rate and Speed: Choose Rate

(a) Go through video lessons: Rate, Average Rate, Example 1, Example 2
(b) Try Practice Drills on your own to check your understanding
Note: An email has been sent to all students via the AceLearning

15 comments:

  1. 1. a) $3.50/l
    b) 72vases/day
    c) 47words/min
    d) $80/m^2
    e) 4kg/m
    f) 60g/egg
    2. a) $23/hour
    b) $920/week
    3. a) 9km/l
    b) $1.20/l
    4. a) 87.5g/cube
    b) 0.7g/cm^3 of cube
    5. a) $15/ticket
    b) $150
    6. a) $22.50/m^2
    b) $450
    7. a) 27l/min
    b) 3mins
    8. a) $26/kg
    b) 25g/m^2
    c) $78
    9. a) $201 600
    b) $4200/m^2
    10. a) 19.3g/cm^3
    b) No it is not, it is slightly lighter than if made of pure gold.

    ReplyDelete
  2. 1) a) $3.50/l
    b) 72 vases/day
    c) 47 words/min
    d) $80/m^2
    e) 4kg/m
    f) 60g/egg

    2)a) $23/hour
    b) $920/week

    3) a) 9km/l
    b) $1.20/l

    4) a) 87.5g/cube
    b) 0.7g/cm^3

    5) a) $15/ticket
    b) $150

    6) a) $22.50/m^2
    b) $450

    7) a) 27 l/min
    b) 3minutes

    8) a) $26/kg
    b) 25g
    c) mass:3kg
    cost: $78

    9) a) $201 600
    b) $4200/m^2

    10) a) 19.3g/cm^3
    b) No.The gold cube would be lighter in weight if it is made of pure
    gold.

    ReplyDelete
  3. 1)a)$3.50/l
    b)72 vases/day
    c)47 words/min
    d)$80/m^2
    c)4kg/m
    d)60g/egg

    2)a)$23/hour
    b)$920/week

    3)a)9km/l
    b)$1.20/l

    4)a)87.5g/cube
    b)0.7g/cm^3

    5)a)$15/ticket
    b)$150

    6)a)$22.50/m^2
    b)$450

    7)a)27 l/min
    b)3 minutes

    8)a)$26/kg
    b)25g
    c)mass:$3 cost:$78

    9)a)$201 600
    b)$4200/m^2

    10)a)19.3g/cm^3
    b)No. If it were made of pure gold ,like the first cube, It would have had less mass.

    ReplyDelete
  4. 1a. $3.50/l
    1b. 72 vases/day
    1c. 47 words/min
    1d. $80/m^2
    1e. 4kg/m
    1f. 60g/egg

    2a. $23/hour
    2b. $920/week

    3a. 9km/l
    3b. $1.20/l

    4a. 87.5g/cube
    4b. 0.7g/cm^3

    5a. $15/ticket
    5b. $150

    6a. $22.50/m^2
    6b. $450

    7a. 27 l/min
    7b. 3 minutes

    8a. $26/kg
    8b. 25g/m^2
    8c. $78

    9a. $201 600
    9b. $4 200/m^2

    10a. 19.3g/cm^3
    10b. No. This cube should be lighter if it is made of pure gold.

    ReplyDelete
  5. 1a) $7/2
    = $3.50/l
    1b) 360/5
    = 72 vases/day
    1c) 376/8
    = 47 words/min
    1d) $240/3
    = $80/m^2
    1e) 10kg/2.5
    = 4kg/m
    1f) 720g/12
    = 60g/egg

    2a) $184/8
    = $23/h
    2b) $184 X 5
    = $920/week

    3a) 225/25
    = 9km/l
    3b) 30/25
    = $1.20/l

    4a) 525/6
    = 87.5/cube
    4b) 5x5x5=125 cm^3
    87.5/125
    = 0.7g/cm^3

    5a) $120/8
    = $15/ticket
    5b) $15 X 10
    = $150/10 tickets

    6a) $270/12
    = $22.50/m^2
    6b) $22.50 X 20
    = $450

    7a) 9 X 3
    = 27 l/min
    7b) 60 X 45 X 30 = 81,000 cm^3 = 81 l
    81/27
    = 3 minutes to fill the tank completely with water

    8a) 13 X 2
    = $26/kg
    8b) 500/20
    = 25g/m^2
    8c) 15 X 8 = 120m^2
    500 X 6 = 3000g
    = 3kg
    $13 X 6
    = $78

    9a) 504,000/5 X 2
    = $201,600
    9b) 504,000/120
    = $4200/m^2

    10a) 3 X 3 X 3 = 27cm^3
    52.11/27
    = 19.3g/cm^3
    10b) No. That cube is not made up of pure gold as would be heavier if it was made up of pure gold.

    ReplyDelete
  6. 1)a. $3.50/l
    b. 72 vases/day
    c. 47 words/min
    d. $80/m^2
    e. 4kg/m
    f. 60g/egg

    2) a.$23/hour
    b. $920/week

    3) a.9km/l
    b.$1.20/l

    2)a. $23/hour
    b. $920/week

    3)a. 9km/l
    b. $1.20/l

    4)a. 87.5g/cube
    b. 0.7g/cm^3

    5)a. $15/ticket
    b. $150

    6)a. $22.50/m^2
    b. $450

    7)a. 27 l/min
    b. 3 minutes

    8)a. $26/kg
    b. 25g/m^2
    c. $78

    9)a. $201 600
    b. $4 200/m^2

    10)a.19.3g/cm^3
    b. No. The cube should have been a little lighter if its made out of pure gold

    ReplyDelete
  7. 1(a)3.50 (b)72 (c)47 (d)80 (e)4 (f)60

    2(a)$23/h (b)$920/week

    3(a)9km/litre (b)$1.20

    4(a)87.5g (b)0.7g

    5(a)$15 (b)$150

    6(a)$22.5 (b)$450

    7(a)27 litre (b)3min

    8(a)$26 (b)25g (c)mass:3kg cost:$78

    9(a)$201600 (b)$4200

    10(a)19.3g
    (b)A pure gold of cube of side 2cm would be 154.4g

    ReplyDelete
  8. This comment has been removed by the author.

    ReplyDelete
  9. 1 (a) $3.50/l
    (b) 72 vases/day
    (c) 47 words/min
    (d) $80/m^2
    (e) 4 kg/m
    (f) 60g/egg

    2 (a) $23/h
    (b) $920/week

    3 (a) 9km/litre
    (b) $1.20/litre

    4 (a) 87.5g/cube
    (b) 0.7g/cm^3 of cube

    5 (a) $15/ticket
    (b) $150

    6 (a) $22.5/m^2
    (b) $450

    7 (a) 27 l/min
    (b) 3 min

    8 (a) $26/kg
    (b) 25g
    (c) 3000g; $78

    9 (a) $201600
    (b) $4200/m^2

    10 (a) $19.50/cm^3
    (b) Pure gold of 2cm side: 2^3 x $19.30 = 154.40g
    Gold cube of 2 cm side: 120g

    The gold cube is not pure as referred to the above working shown.

    [Oops for the deleted post above, because I missed out an important word in the statement hahaha]

    ReplyDelete
  10. 1a: $3.50/L
    1b: $72
    1c: 47words/min
    1d: $80/m^2
    1e: 4kg/m
    1f: 60g/egg

    2a: $23/h
    2b: $920/week

    3a: 9km/L
    3b: $1.20/L

    4a 87.5g/cube
    4b 0.7g/cm^3 of cube


    5a $15/ticket
    5b $150

    6a $22.5/m^2
    6b $450

    7a 27 L/min
    7b 3 min

    8a $26/kg
    8b 25g
    8c Mass: 3kg, Cost: $78

    9a $201600
    9b $4200/m^2

    10a $19.50/cm^3
    10b Pure gold would be 154.4g, so it is not 100% gold.

    ReplyDelete
  11. 1a: $3.50/L
    1b: $72
    1c: 47words/min
    1d: $80/m^2
    1e: 4kg/m
    1f: 60g/egg

    2a: $23/h
    2b: $920/week

    3a: 9km/L
    3b: $1.20/L

    4a 87.5g/cube
    4b 0.7g/cm^3 of cube


    5a $15/ticket
    5b $150

    6a $22.5/m^2
    6b $450

    7a 27 L/min
    7b 3 min

    8a $26/kg
    8b 25g
    8c Mass: 3000g,
    Cost: $78

    9a $201600
    9b $4200/m^2

    10a $19.50/cm^3
    10b No. it is because pure gold cube of side 2 cm weighs 154.4g wheras a gold cube of side 2 cm weighs 120g thus it is not made of pure gold.

    ReplyDelete
  12. 1a. $3.50/l
    1b. 72 vases/day
    1c. 47 words/min
    1d. $80/m^2
    1e. 4kg/m
    1f. 60g/egg
    2a. $23/hour
    2b. $920/week
    3a. 9km/l
    3b. $1.20/l
    4a. 87.5g/cube
    4b. 0.7g/cm^3
    5a. $15/ticket
    5b. $150
    6a. $22.50/m^2
    6b. $450
    7a. 27 l/min
    7b. 3 minutes
    8a. $26/kg
    8b. 25g/m^2
    8c. $78
    9a. $201 600
    9b. $4 200/m^2
    10a. 19.3g/cm^3
    10b. The cube will be lighter if it was pure gold.

    ReplyDelete
  13. 1 (a) $3.50/litre
    (b) 72 vases/day
    (c)47 words/min
    (d) $80/m^2
    (e)4kg/m
    (f)60g/egg
    2 (a)$23/hour
    (b) $920/week
    3 (a) 9km/l
    (b)$1.20/l
    4 (a) 87.5g/cube
    (b) 0.7g/cm^3
    5 (a)$15/ticket
    (b)$150
    6 (a) $22.50/m^2
    (b) $450
    7 (a) 27 l/min
    (b) 3 minutes
    8 (a)$26/kg
    (b) 25g/m^2
    (c) $78
    9 (a)$201 600
    (b)$4 200/m^2
    10 (a) 19.3g/cm^3
    (b)No, it is lighter than pure gold, which means it's probably not real.

    ReplyDelete
  14. 1a. $3.50/l

    1b. 72 vases/day

    1c. 47 words/min

    1d. $80/m^2

    1e. 4kg/m

    1f. 60g/egg

    2a. $23/hour

    2b. $920/week

    3a. 9km/l

    3b. $1.20/l

    4a. 87.5g/cube

    4b. 0.7g/cm^3

    5a. $15/ticket

    5b. $150

    6a. $22.50/m^2

    6b. $450

    7a. 27 l/min

    7b. 3 minutes

    8a. $26/kg

    8b. 25g/m^2

    8c. $78

    9a. $201 600

    9b. $4 200/m^2

    10a. 19.3g/cm^3

    10b. The cube will be lighter if it was pure gold.

    ReplyDelete
  15. 1. a) $3.50/litre
    b) 72vases/day
    c) 47words/min
    d) $80/m^2
    e) 4kg/m
    f) 60g/egg

    2. a) $23/hour
    b) $920/week

    3. a) 9km/litre
    b) $1.20/litre

    4. a) 87.5g/cube
    b) 0.7g/cm^3

    5. a) $15/ticket
    b) $150

    6. a) $22.50/m^2
    b) $450

    7. a) 27l/min
    b) 3mins

    8. a) $26/kg
    b) 25g/m^2
    c) $78

    9. a) $201 600
    b) $4200/m^2

    10. a) 19.3g/cm^3
    b)No, it is not. It is slightly less dense than pure gold

    ReplyDelete